*{
    margin: 0;
    padding: 0;
}
.cl{
    clear: both;
}
.header{
    background: #dcdcdc;
    height: 50px;
}
.header h1{
    float: left;
    line-height: 50px;
}
.header-btn{
    font-size: 20px;
    float: right;
    display: none;
}
.header-btn i{
    line-height: 50px;
    margin-right: 20px;
}
#ck{
    opacity: 0;
}
.menu{
    float: right;
    line-height: 50px;
    display: block;
}
.menu a{
    color: white;
    text-decoration: none;
    padding: 0 10px;
    text-transform: uppercase;
}
.menu-btn{
    display: none;
}
